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IETF 93 Network Information – Prague, Czech Republic

Terminal Room

The Terminal Room is located in the Amsterdam and Sofia rooms, which is on the Lobby Level past the business center. The Terminal Room is open 24 hours a day beginning Sunday, 19 July, 2015 at 16:00 and ending on Friday, 24 July, 2015 at 15:00. A help desk is being provided, hours are listed below. The room itself consists of approximately 100 seats, providing some wired access and 220v power ports. There is also an HP Officejet Pro 8620 printer available.

Please note that this terminal room has no terminals, PCs, or other user-accessible machines. It is simply a place to get power, wired Internet access, help desk support, or print documents.

When using the Ethernet connections in the Terminal Room, IPv4 addressing is provided via DHCP. Please use Dynamic Auto-configuration for IPv6. A stateless DHCPv6 server or RDNSS will provide network information. To cut down on the mess, ethernet cables have not been installed to every seat in the Terminal Room. If you need a cable, please ask at the Help Desk.

Please note that at the request of the IETF Chair, demonstrations are no longer permitted in the Terminal Room.

Help Desk

A help desk is being provided and will be staffed the following hours:

Sunday

16:00 to 19:00

Monday

8:00 to 20:00

Tuesday

8:00 to 18:00

Wednesday

8:00 to 20:00

Thursday

8:00 to 20:00

Friday

8:00 to 15:00

NOC and Ticketing

There are several ways to communicate with the NOC staff.

Submit a new trouble ticket via the ​trac web interface. Filling in the following fields: "My MAC Address", "My Current Location", and "My OS" may expedite ticket processing. If you have an existing account on ​http://tools.ietf.org you can use your established credentials (email address and tools password) to ​log in.

Send an email to tickets@meeting.ietf.org with as much detail regarding your issue and configuration as possible.

If you're on site and need direct network assistance (i.e - you have no network) please go to the helpdesk, which is located in the Terminal Room.

Use the Jabber room at noc @ jabber.ietf.org to report issues or communicate with the NOC.

You can also use trac to review outstanding tickets before reporting an issue or to update outstanding tickets.

External Connectivity

The IETF 93 network connects to the Internet via a 10Gb/s link provided by CZ.NIC and a 1Gb/s link from Dial Telecom. The IETF uses 31.133.128.0/18, 31.130.224.0/20 and 130.129.0.0/16 for IPv4 and 2001:67c:1230::/46, 2001:67c:370::/48 and 2001:df8::/32 for IPv6. We are supplying bandwidth for the conference space, as well as wireless and wired connections in the guest rooms.

Meeting Room Wireless

An 802.11 a/g/n/ac wireless network is provided throughout the venue on both the 2.4 and 5 GHz bands, in conjunction with IPv4 and IPv6 addressing options.

The main “ietf” wireless network is now encrypted; when prompted for credentials, enter ietf for both the username and password.

Here’s a quick summary of the new network layout:

SSID

Description

Encrypted

Frequencies

IP Versions

ietf

Our default network

yes

5Ghz only

v4 and v6

ietf-legacy

For legacy and unencrypted use

no

2.4 and 5Ghz

v4 and v6

ietf-2.4ONLY

An encrypted network for 2.4Ghz users

yes

2.4Ghz only

v4 and v6

ietf-v6ONLY

For users wanting a pure IPv6

yes

5Ghz only

v6 only

ietf-nat64

IPv6 stack with NAT64 to access IPv4 resources

yes

5Ghz only

v6 with NAT64 & DNS64

eduroam

educational users

yes

2.4 and 5Ghz

v4 and v6

All networks marked as encrypted will offer layer 2 security. This is done using WPA enterprise with 802.1X (PEAP or TTLS) authentication and AES or TKIP encryption. As usual, we are all using the same credentials (user “ietf”, password “ietf”), yet each user will get unique session encryption keys. Our Radius authentication servers use a certificate that you can verify by going to this page: ​https://www.ietf.org/registration/MeetingWiki/wiki/92net

Guest Room Access

The IETF Network is being extended to the guest rooms in the Hilton. *Note* that while we are using the IETF meeting network for Internet connectivity, we are using the hotel's infrastructure (Ruckus access points) for the delivery to the guest rooms, so there are limits to the improvements we can effect. We recommend using the wired connection if you experience poor connectivity in your guest room.

Wired:

IPv4 and IPv6 and provided via the wired connection in your room. Due to architectural limitations, inbound TCP connections from the Internet may not be available on the in-room wired connection.

Wireless:

In the guest room areas you should find the “ietf-hotel” SSID. This network is 2.4GHz/5GHz and is being delivered via the Hilton's Ruckus access points. We encourage heavy users and/or those having poor coverage to use the wired connection.

Support

If you have trouble using any of the Public or Guest Room services, please try to switch to the hotel SSIDs ("hhonors") or the hotel wired port. If that doesn’t work, please contact the Hilton support as listed in your room. If things are working fine on the hotel offerings but not on the IETF SSIDs/ports, please do contact us in the Terminal Room (Amsterdam) or via tickets @ meeting.ietf.org and we’ll be glad to help!

Printing

There is a printer in the Terminal Room and is available to all IETF users. The printer is an HP Officejet Pro 8620 and is accessible via LPD, Bonjour, standard TCP/IP on port 9100. The hostname for it is term-printer.meeting.ietf.org.

Place pages to be scanned face-up in the page feeder on top of the printer.

Press "Start Scan" on the web page.

Once the Scan has completed a window to the right will display the PDF contents of the scan.

Using the scroll bar in the Image Preview - Scroll to the right and select the "Download" button

Services

The following network services are provided:

Service

Address

Notes

SMTP

smtp.meeting.ietf.org

Will provide SMTP relay for anything within the IETF network

NTP

ntp.meeting.ietf.org

A stratum 2 time service is provided via IPv4 and IPv6 unicast

DNS

ns1.meeting.ietf.org ns2.meeting.ietf.org

Validating recursive resolvers. The domain name is meeting.ietf.org.

These services are being provided from both of the following servers:
31.130.229.6 / [2001:67c:370:229::6]
or
31.130.229.7 / [2001:67c:370:229::7]

Geolocation

There is a geolocation feed published here: ​http://noc.ietf.org/geo/google.csv
Geolocation service for temporary networks is often hit or miss. Suggestions/assistance is welcomed.

MAC Privacy @IETF93

After doing MAC Privacy trials at IETF91 in Honolulu and IETF92 in Dallas, we are transitioning to this being a standard service on the IETF network. It will operate on the all the IETF meeting networks, so no special SSID will be broadcast. Users participating in the service will be assigned a shorter DHCP lease. Note that this time there is also support for some mobile devices.

Instructions and tools to automatically randomize the MAC address used by the Wi-Fi interface of your device can be found (for several OSes) at:

Thanks

The terminal room and IETF network are made possible by the generous contributions by a number of companies and by the tireless efforts of our volunteer team. If you see any of these people in the halls, please be sure to thank them for all their work!